.contsum
contsum sets the parameters to be used to fit the continuum of
spectra on which
sumspec
is being run.
It is an IRAF "pset"; invocation causes eparam to
be run on the file contsum.par.
The following parameters may be modified:

c_interactive no

Fit continuum interactively (yes or no). If yes, a
graph of the spectrum
and the continuum fit is plotted to stdgraph, with rejected points flagged.
The program waits until one of the following keys is typed: